Skip to main content

Table 1 Absolute error from initial breath-hold at expiration

From: Respiratory level tracking with visual biofeedback for consistent breath-hold level with potential application in image-guided interventions

  Median Q1–Q3 p value
Skin surface error without feedback (mm) 0.79 0.47–1.56 < 0.001
Skin surface error feedback (mm) 0.15 0.06–0.30
Eoverall without feedback (mL) 147 76.8–276.8 < 0.001
Eoverall with feedback (mL) 27.7 10.9–51.7
Emen with feedback (mL) 35.5 14.3–52.3 0.081
Ewomen with feedback (mL) 23.7 8.2–50.4
Esupine without feedback (mL) 124.6 55.7–259.7 0.012
Eprone without feedback (mL) 156.3 90.9–334.7
Esupine with feedback (mL) 31.7 12.8–59.6 0.086
Eprone with feedback (mL) 22.3 7.7–47.0
  1. E absolute error from initial breath-hold at functional residual capacity level